scholarly journals Online Tremor Suppression Using Electromyography and Low-Level Electrical Stimulation

Author(s):  
Strahinja Dosen ◽  
Silvia Muceli ◽  
Jakob Lund Dideriksen ◽  
Juan Pablo Romero ◽  
Eduardo Rocon ◽  
...  
2016 ◽  
Vol 1 (1) ◽  

Low-level electrical stimulation (LL-ES) of aortic root ventricular ganglionated plexi (GP) was proved to be antiarrhythmic in the initiation of AF mediated by autonomic nervous system. However,it is still uncertain whether LL-ES of the ventricular GP can reverse the structural remodeling of myocardial fibrosis and atrial enlargement following heart failure by attenuating the sympathetic tone. Therefore,this review will give an general argument on this topic.


2013 ◽  
Vol 38 (4) ◽  
pp. 287-302 ◽  
Author(s):  
Loek A Van der Heide ◽  
Bob van Ninhuijs ◽  
Arjen Bergsma ◽  
Gert Jan Gelderblom ◽  
Dick J van der Pijl ◽  
...  

Background:Assistive devices that augment arm function were already introduced during the polio era. Devices are still being developed, but a review has not been performed thus far.Objective:To create an overview and categorize assistive devices facilitating arm function in activities of daily living for people with decreased arm function.Study design:Literature review.Methods:A systematic review in three scientific literature databases. Conference proceedings, assistive technology databases, and references were searched and experts consulted. This resulted in a database of dynamic arm supports. Product information was added, and the devices were categorized.Results:A total of 104 dynamic arm supports were found. These could be categorized as nonactuated devices (N = 39), passively actuated devices (N = 24), actively actuated devices (N = 34), or devices using the functional electrical stimulation principle (N = 7). Functionality analysis resulted in second-level categorization: tremor suppression, facilitation of anti-gravity movement, and assistance of specific joint motion.Conclusion:All devices could be ordered in a categorization of low complexity. Many have been developed; most have disappeared and have been succeeded by similar devices. Limitations of the devices found mainly concern interfacing and the range of motion facilitated. Future devices could make use of whatever residual strength is available in the users’ arm for control.Clinical relevanceThe provided overview of devices in this article and the classification developed is relevant for practitioners seeking assistive solutions for their clients as it makes the range of developed solutions both accessible and comprehensible.


2016 ◽  
Vol 25 (1) ◽  
pp. 83-90 ◽  
Author(s):  
Andrew T. Doyle ◽  
Christine Lauber ◽  
Kendra Sabine

Clinical Scenario:Tendinopathies plague many active individuals, causing pain and reducing sport activity by decreasing range of motion and strength. There are many modalities that have been used to treat pain associated with chronic inflammation, such as ultrasound, moist heat packs, and electrical stimulation. Low-level laser therapy (LLLT) is one such modality. Potential benefits of managing pain associated with tendinopathies have been investigated using LLLT. Cellular respiration and metabolism are thought to be increased by LLLT acting on the mitochondrial cytochromes. The effects LLLT may have on cellular activity could increase blood flow to progress the healing process by reducing the pain-spasm cycle. The purpose of this critically appraised topic is to identify the clinical effectiveness of LLLT on pain associated with tendinopathy and to identify the parameters used to achieve statistically and clinically relevant pain outcomes.Focused Clinical Question:What is the effect of LLLT on pain associated with tendinopathy?Clinical Bottom Line:Although LLLT significantly decreases pain from baseline, its use may be no better than placebo or traditional treatments such as ultrasound, moist heat packs, electrical stimulation, or therapeutic exercise to reduce pain associated with tendinopathy. Total accumulated joules across the treatment sessions may need to be taken into account as a parameter.


2006 ◽  
Vol 101 (1) ◽  
pp. 283-288 ◽  
Author(s):  
Rodrigo Álvaro B. Lopes-Martins ◽  
Rodrigo Labat Marcos ◽  
Patrícia Sardinha Leonardo ◽  
Antônio Carlos Prianti ◽  
Marcelo Nicolas Muscará ◽  
...  

We investigated whether low-level laser therapy (LLLT) can reduce muscular fatigue during tetanic contractions in rats. Thirty-two male Wistar rats were divided into four groups receiving either one of three different LLLT doses (0.5, 1.0, and 2.5 J/cm2) or a no-treatment control group. Electrical stimulation was used to induce six tetanic muscle contractions in the tibial anterior muscle. Contractions were stopped when the muscle force fell to 50% of the initial value for each contraction (T50%). There was no significant difference between the 2.5 J/cm2 laser-irradiated group and the control group in mean T50% values. Laser-irradiated groups (0.5 and 1.0 J/cm2) had significantly longer T50% values than the control group. The relative peak force for the sixth contraction in the laser-irradiated groups were significantly higher at 92.2% (SD 12.6) for 0.5 J/cm2, 83.2% (SD 20.5) for 1.0 J/cm2, and 82.9% (SD 18.3) for 2.5 J/cm2 than for the control group [50% (SD 15)]. Laser groups receiving 0.5 and 1.0 J/cm2 showed significant increases in mean performed work compared with both the control group and their first contraction values. Muscle damage was indirectly measured by creatine kinase levels in plasma. A distinct dose-response pattern was found in which 1.0 and 2.5 J/cm2 LLLT groups had significantly lower creatine kinase levels than the 0.5 J/cm2 LLLT group and the control group. We conclude that LLLT doses of 0.5 and 1.0 J/cm2 can prevent development of muscular fatigue in rats during repeated tetanic contractions.


2019 ◽  
Vol 27 (2) ◽  
pp. 540-552 ◽  
Author(s):  
Engin Hasan Copur ◽  
Chris T. Freeman ◽  
Bing Chu ◽  
Dina Shona Laila

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